20 micron filtration - reduces sediment smaller than the human eye can see.
Replacements made easy - no plumber necessary. Replace filter every 3 months. Large capacity (4.5") filter is perfect for household sizes 4 or more people.
Durable appliances - comprehensive filtration system intended to minimize sediment at all faucets.
Includes one replacement filter.
Filter for use with: Whole House Filter System with Timer (AO-WH-PREL). Use only certified, genuine A. O. Smith filters for continued contaminant removal and system performance.